diff options
| author | David Eccher <d.eccher@gmail.com> | 2015-12-12 00:13:55 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-12-17 00:19:11 +0300 |
| commit | b7bd98b7db9fc8fe19da1a5ff0215311c6b95e46 (patch) | |
| tree | 07d1815a9de5a9c43c3940ad933fa10072c46b48 /drivers | |
| parent | d0450272a6b9c6326017f490a808eb7caf214400 (diff) | |
| download | linux-b7bd98b7db9fc8fe19da1a5ff0215311c6b95e46.tar.xz | |
usb: gadget: inode.c: fix unbalanced spin_lock in ep0_write
Fix bad unlock balance: ep0_write enter with the locks locked from
inode.c:1769, hence it must exit with spinlock held to avoid double
unlock in dev_config.
Signed-off-by: David Eccher <d.eccher@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/legacy/inode.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index f454c7af489c..365afd7e14f8 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -1137,10 +1137,9 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) dev->gadget->ep0, dev->req, GFP_KERNEL); } + spin_lock_irq(&dev->lock); if (retval < 0) { - spin_lock_irq (&dev->lock); clean_req (dev->gadget->ep0, dev->req); - spin_unlock_irq (&dev->lock); } else retval = len; |